Shooting at Lone Star College in north Houston

Students wait outside an entrance to the Lone Star College North Harris campus in Houston after a shooting that wounded at least three people and sent students fleeing for safety.

Students wait outside an entrance to the Lone Star College North Harris campus in Houston after a shooting that wounded at least three people and sent students fleeing for safety. (Patric Schneider / Associated Press)

Ana Leal, left, embraces Lone Star College student Sabrina Cuellar after she evacuated the campus in the wake of the shooting. With them is Cuellar's mother, Maria, who arrived to drive her daughter home.

Ana Leal, left, embraces Lone Star College student Sabrina Cuellar after she evacuated the campus in the wake of the shooting. With them is Cuellar's mother, Maria, who arrived to drive her daughter home. (Brett Coomer / Associated Press)